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1. (WO2011139807) PROCESS FOR PRODUCING PTFE AND ARTICLES THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/139807    International Application No.:    PCT/US2011/034224
Publication Date: 10.11.2011 International Filing Date: 28.04.2011
IPC:
C08F 14/26 (2006.01), C08L 27/18 (2006.01), C08J 5/18 (2006.01), D01F 6/08 (2006.01), C08F 2/24 (2006.01)
Applicants: 3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427 (US) (For All Designated States Except US).
FREY, Oliver [DE/DE]; (DE) (For US Only).
HINTZER, Klaus [DE/DE]; (DE) (For US Only).
NEUMANN, Wolfgang [DE/DE]; (DE) (For US Only).
STREITER, André [DE/DE]; (DE) (For US Only)
Inventors: FREY, Oliver; (DE).
HINTZER, Klaus; (DE).
NEUMANN, Wolfgang; (DE).
STREITER, André; (DE)
Agent: LAPOS-KUCHAR, Julie A.; 3M Center Office of Intellectual Property Counsel Post Office Box 33427 Saint Paul, Minnesota 55133-3427 (US)
Priority Data:
1007043.1 28.04.2010 GB
Title (EN) PROCESS FOR PRODUCING PTFE AND ARTICLES THEREOF
(FR) PROCÉDÉ DE PRODUCTION DE PTFE ET ARTICLES EN PTFE
Abstract: front page image
(EN)Described herein is a process for making PTFE having a standard specific gravity of less than 2.160 g/cm3 comprising: polymerizing a tetrafluoroethylene monomer in an aqueous medium comprising an emulsifier and an initiator in a reaction vessel and contacting the aqueous medium with a fluorinated polyether. Also described herein are the polymerizable compositions and articles thereof.
(FR)La présente invention concerne un procédé de fabrication de PTFE ayant une gravité spécifique standard inférieure à 2,160 g/cm3, qui comprend : la polymérisation d'un monomère de tétrafluoroéthylène dans un milieu aqueux comprenant un émulsifiant et un initiateur dans une cuve de réaction et la mise en contact du milieu aqueux avec un polyéther fluoré. La présente invention concerne également des compositions polymérisables et des articles en ces compositions.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)